<template>
  <div class="app-container">
    <!--查询表单-->
    <el-form :inline="true" class="demo-form-inline">
      <el-form-item>
        <el-input v-model="courseQuery.name" placeholder="课程名称" />
      </el-form-item>

      <el-form-item>
        <el-select v-model="courseQuery.level" clearable placeholder="课程状态">
          <el-option :value="0" label="未发布" />
          <el-option :value="1" label="已发布" />
        </el-select>
      </el-form-item>

      <el-form-item label="添加时间">
        <el-date-picker
          v-model="courseQuery.begin"
          type="datetime"
          placeholder="选择开始时间"
          value-format="yyyy-MM-dd HH:mm:ss"
          default-time="00:00:00"
        />
      </el-form-item>

      <el-button type="primary" icon="el-icon-search" @click="getList()"
        >查询</el-button
      >
      <el-button type="default" @click="resetData()">清空</el-button>
    </el-form>

    <!-- 展示讲师表格 -->
    <el-table
      :data="list"
      stripe
      style="width: 100%"
      fit
      highlight-current-row
      row-class-name="myClassList"
    >
      <el-table-column label="序号" width="80" align="center">
        <template slot-scope="scope">
          {{ (page - 1) * limit + scope.$index + 1 }}
        </template>
      </el-table-column>

      <el-table-column
        prop="title"
        label="课程名称"
        width="80"
        align="center"
      />

      <el-table-column label="课程状态" width="80" align="center">
        <template slot-scope="scope">
          {{ scope.row.status == 1 ? "已发布" : "未发布" }}
        </template>
      </el-table-column>

      <el-table-column prop="lessonNum" label="课时数" />

      <el-table-column
        prop="viewCount"
        label="浏览数量"
        width="80"
        align="center"
      />

      <el-table-column
        prop="gmtCreate"
        label="添加时间"
        width="160"
        align="center"
      />

      <el-table-column label="操作" width="350" align="center">
        <template slot-scope="scope">
          <router-link :to="'/course/info/' + scope.row.id">
            <el-button type="text" size="mini" icon="el-icon-edit"
              >编辑课程基本信息</el-button
            >
          </router-link>
          <router-link :to="'/course/chapter/' + scope.row.id">
            <el-button type="text" size="mini" icon="el-icon-edit"
              >编辑课程大纲信息
            </el-button>
          </router-link>
          <el-button
            type="text"
            size="mini"
            icon="el-icon-delete"
            @click="removeDataById(scope.row.id)"
            >删除课程信息</el-button
          >
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页 -->
    <el-pagination
      :current-page="page"
      :page-size="limit"
      :total="total"
      style="padding: 30px 0; text-align: center"
      layout="total, prev, pager, next, jumper"
      @current-change="getList"
    />
  </div>
</template>

<script>
import course from "../../../api/edu/course";
export default {
  data() {
    //定义变量和初始值
    return {
      list: null, //查询之后接口返回集合
      page: 1, //当前页
      limit: 5, //每页记录数
      total: 0, //总记录数
      courseQuery: {}, //条件封装对象
    };
  },
  created() {
    //页面渲染之前执行，一般调用methods定义的方法
    //调用
    this.getList();
  },
  methods: {
    //编辑课程基本信息
    EditChapter(id) {
      this.$router.push({ path: `/course/info/${this.courseId}` });
    },
    //处理接口返回的数据
    //讲师列表的方法
    getList(page = 1) {
      this.page = page;
      course
        .pageList(this.page, this.limit, this.courseQuery)
        .then((response) => {
          //请求成功
          //response接口返回的数据
          this.list = response.data.records;
          this.total = response.data.total;
          // console.log(response)
          console.log(this.list);
          console.log(this.total);
        })
        .catch((error) => {
          console.log(error);
        });
    },
    resetData() {
      //清空的方法
      //表单输入项数据清空
      this.courseQuery = {};
      //查询所有课程数据
      this.getList();
    },
    //删除课程方法
    removeDataById(id) {
      this.$confirm("此操作将永久删除课程记录, 是否继续?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      })
        .then(() => {
          console.log(id);
          // 点击确定，执行then方法
          // 调用删除的方法
          course.deleteCourseId(id).then((response) => {
            //删除成功
            //提示信息
            this.$message({
              type: "success",
              message: "删除成功!",
            });
            //回到列表页面
            this.getList();
          });
        })
        .catch(() => {}); //点击取消，执行catch方法
    },
  },
};
</script>

.myClassList .info {
  width: 450px;
  overflow: hidden;
}
.myClassList .info .pic {
  width: 150px;
  height: 90px;
  overflow: hidden;
  float: left;
}
.myClassList .info .pic a {
  display: block;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
}
.myClassList .info .pic img {
  display: block;
  width: 100%;
}
.myClassList td .info .title {
  width: 280px;
  float: right;
  height: 90px;
}
.myClassList td .info .title a {
  display: block;
  height: 48px;
  line-height: 24px;
  overflow: hidden;
  color: #00baf2;
  margin-bottom: 12px;
}
.myClassList td .info .title p {
  line-height: 20px;
  margin-top: 5px;
  color: #818181;
}
</style>
